Congoglanis inga : fisheries

Congoglanis inga Ferraris, Vari & Skelton 2011

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Congoglanis inga
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drawing shows typical fish in this Family.

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> Siluriformes (Catfish) > Amphiliidae (Loach catfishes) > Doumeinae
Etymology: inga: River; a noun in apposition (Ref. 88958).  More on authors: Ferraris, Vari & Skelton.

Environment: milieu / climate zone / depth range / distribution range Ecologie

; zoetwater demersaal.   Tropical; 5°S - 6°S, 13°E - 14°E

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Africa: known only from the vicinity of the Inga Dam, Lower Congo River basin, in the Democratic Republic of the Congo (Ref. 88958, 92838).

Size / Gewicht / Leeftijd

Maturity: Lm ?  range ? - ? cm
Max length : 11.1 cm SL mannelijk/geslacht niet bekend; (Ref. 88958)

Korte beschrijving Morfologie | Morfometrie

Dorsale stekels (totaal): 0; Dorsale zachte stralen (totaal): 7-8; Anale stekels 0; Anale zachte stralen: 10 - 11; Wervels: 35 - 37. Diagnosis: Congoglanis inga differs from C. sagitta in having a longer maxillary barbel, reaching well past vertical through anterior margin of orbit vs. not reaching to orbit; a deeper caudal peduncle, 7-8% of standard length vs. 6%; and less slender caudal peduncle, its depth 2.1-2.9 times in its length vs. 3.1-4.0; a longer pelvic fin, 22-25% of standard length vs. 19-21%; a more posteriorly placed anal fin, anal-fin origin approximately at tip of adpressed pelvic fin vs. origin well in advance of tip of adpressed pelvic fin; longer anal-fin rays, posterior rays of adpressed anal fin extend well past vertical through posterior limit of adipose fin vs. posterior rays extend to, rarely slightly beyond, vertical through posterior limit of adipose fin; and fewer vertebrae, 35-37 vs. 39-41 (Ref. 88958). It differs from C. alula in having a longer maxillary barbel, reaching well past vertical through anterior margin of orbit vs. not reaching to orbit; a shorter pelvic fin, 19-21% of standard length vs. 24-28%; a longer postorbital length, 32-35% of head length vs. 27-31%; a relatively wide interorbital width, 2 times eye-diameter vs. 1.5 times; and longer anal-fin rays, posterior rays of adpressed anal fin extend well past vertical through posterior limit of adipose fin vs. posterior rays extend to, rarely slightly beyond, vertical through posterior limit of adipose fin (Ref. 88958).

Biologie     Verklarende woordenlijst (b.v. epibenthic)

This species has been collected from "a long channel with moderate current, numerous pools and a predominantly rocky bottom" (Ref. 42510, 88958).

Life cycle and mating behavior Geslachtsrijpheid | Voortplanting | Kuitschieten | Eieren | Fecundity | Larven

Voornaamste referentie Upload your references | Referenties | Coördinator | Medewerkers

Ferraris, C.J. Jr., R.P. Vari and P.H. Skelton, 2011. A new genus of African loach catfish (Siluriformes: Amphiliidae) from the Congo River basin, the sister-group to all other genera of the Doumeinae, with the description of two new species. Copeia 2011(4):477-489. (Ref. 88958)

Status op de Rode Lijst van het IUCN (Ref. 123251)


CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaarlijk voor mensen

  Harmless





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Estimates based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5625   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.1   ±0.4 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref. 120179):  Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (Preliminary K or Fecundity.).
Kwetsbaarheid (Ref. 59153):  Moderate vulnerability (37 of 100) .